When Tracy Jordan goes to Kenneth Parcell's apartment to feed his pet bird, a Dwight Schrute bobblehead doll is visible on one of his shelves, a reference to The Office (2005).
The outside consulting group hired to make cutbacks at NBC is The Himmler Group, a reference to the infamous Nazi officer Heinrich Himmler.
Kenneth names two of his birds "Lorne" and "Michael". This is a references to the show's producer Lorne Michaels, whose name is on screen during the credits when Kenneth names the birds.
The empty champagne bottles given to the crew are a loose reference to the Chicago Black Sox who were given bottles of flat champagne by their cheap owner, instead of a bonus.